I have 8.02 running on two IPhone 5s's and two IPad Mini's and both are working fine. There are some nice new features. The only glitch I am experiencing is on the IPads in that locations services is not working with my home wifi, but does with the one at my golf course. It is not a big deal and everything else is working well. The Apple web site shows many people have various issues but not me thus far.
I did have the battery drain issue but after a hard reset, the problem went away (prior to installing 8.02. I'm a happy user at the moment.
When I updated to iOS 8 I had to recharge my 5S phone twice a day. Since going to 8.0.2 my battery life has improved greatly. It was at 60% last night when I finished using it for the day and is at 80% now today.
Just wait one week. If there are problems with a software release, you'll find plenty of complaints on the Internet. Keep waiting until there seems to be a release that isn't showing problems.
Also, if you backup your iPad on iTunes, if you get into a problem with the newer software version, you can restore the one that works from iTunes and wait for better prospects.